Having already made a showing at Liverpool and Bristol during October, peripatetic techno-pop/IDM composer Holly Herndon brings her expanded show to London. This is a full multi-media experience including the usual music, visuals and dance elements but with an interactive component that goes far beyond Holly’s onstage collaborations with programmer/life partner Mat Dryhurst and with interpretative dancer/additional singer Colin Self. In particular, Mat’s adaptive and conceptual SAGA software reaches out beyond the stage to work – consensually – with the audience members’ own browser histories and Facebook content; mixing it all into the visuals (and, potentially, the sounds) as a communal mashup, both representational and communicatory.

Intriguing as this factor is, it’s an adjunct to Holly’s music; which remains the core material of the show. Continually glitched, tweaked and deconstructed, her compositions are a cool, complex, thoughtful and exhilarating mixture. They’re informed by post-classical forms, dance techno, and anthemic synth pop; they utilize experimental textures and broad vocal stylings (from standard singing to semi-voluntary sounds) and they bury philosophical queries deep within their tunes. Holly’s soundwork is as immersive as her stagings, full of implied questions and reflections regarding our access to and immersion in technology and how this affects the way in which we think and express ourselves, leaving comet-trails of information, interaction and yearnings.

All of these additional subtexts and pointers are there if you want them, but Holly is first and foremost a communicating musician, and her pieces are as melodious and accessible as they are multi-layered. Drawing on her ongoing music studies (doctorate level at Stanford) , her time as a precocious and enquiring teenager steeped in the heat and fun of the Berlin club scene, and her work with everything from choirs to customised laptop software, they sometimes sound like particularly complicated pop songs, stuttering their way through myriad changes of attention and focus. Sometimes they sound like accelerated dream-state dances; sometimes like madrigals sung during earthquakes (see Unequal, below). At other times, they’re like the chatter of path-switching in a circuit; or like carefully-directed cultural channel-surfings which quick-step deftly back and forth across a breadth of urban art and experience (from grand opera house to downloads in cramped bedsits). Brain food which encourages you to wander.

Also on the bill are Jam City and Claire Tolan, both of whom share Holly’s interest in interactions and in the results of our being embedded within a dense informational culture, although each has their own way of approaching the situation.

Jam City is the alias of dance-electronica producer and deconstructionist Jack Latham. Though Jack’s background in fashion and “corporate espionage” sounds almost too good to be true, as if it’s been dream-tailored for counter-cultural media discussions and for high-end elitist posing, he doesn’t use it that way. As a musician, he’s evolved from collaging various dubstep tropes towards using his work to develop and express questioning, outright political critiques of neoliberal capitalism (such as the Unhappy single, which explores the dulled angst of online porn consumers while juxtaposing it with riot footage). In the process, Jack’s also developed as a performer – backgrounding the laptops and the passive role of the standard electronica performer in order to retake the stage as guitarist and singer, and delivering a new phase of material described as sounding like “a Prince record constructed from cold, chunky industrial sounds”.

Claire Tolan is an artist, programmer, sampler, writer and soundscaper specializing in autonomous sensory meridian r – a psychological process in which carefully-arranged sound and speech – usually a blend of themed, targeted whispers and quiet diegetic noises (scratches, scuffs, intimate room sounds) – triggers euphoric physical and mental reactions in the listener. With sharp wit, Claire links all of this to new developments in programming and acoustic surveillance technologies, exploring the question of how it might be applied: from simple mood enhancements and healing systems through to neurolinguistics and perception and to the potential manipulation and control of people. Her recent Holly Herndon collaboration Lonely At The Top (see below) might give some clues as to her concert performance. A cosseting monologue, coffee-pot dribbles and the close-up noises of small rooms are interspersed with the rubs and slaps of massage, fingernails ticking on keyboards and screens, and increasingly intimate sounds of hand and mouth: the language, desires and end results of relaxation tapes, executive relief, socially-reinforced senses of entitlement and prostitution blend and overlap to sardonic, disturbing effect.

Information and tickets for the concert are here while the Facebook event page is here. At the end of the month, Holly will also be appearing at All Tomorrow’s Parties at Prestatyn.

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There are some similarities between Holly Herndon and Laura Moody – not least an overlap with classical music and a sense of being on the outcrops of songcraft, delving up malleable truths and questions. Yet whereas Holly’s a post-classical theoretician (reconciling her education with her human instincts, and with life outside the college bubble) and works primarily on computer, Laura comes from older and more familiar traditions, and is almost exclusively an acoustic performer. Possessing outstanding talent both as a singer and as a cellist – and able to cover both fields simultaneously, as well as beatboxing and cello-drumming – she pounces into her own music with the terrifying, exhilarating technical skills of a top-drawer classical soloist.

Laura’s songwriting instinct, meanwhile, seem to come from multiple directions at once. Tense twentieth-century string figures (from her earlier years playing avant-garde pieces with the Meredith Monk Ensemble, and her current work with the Elysian Quartet); ancient, eerie folk airs; expressionist opera; P.J. Harvey’s cleaver intensity; the clever, idiosyncratic and individual art pop of a Kate Bush, a Tom Waits or a Bjork. Everything that she delivers sounds immediate, whether it’s the savagely equivocal hormonal take-down of an older man on Creeping Alopecia, the raindrop attenuations of Call This Time Love, or the stormy dissections of love-gone-wrong and betrayal on Turn Away and We Are Waiting.

The live gigs are enthralling wonders: supple switchings between Laura’s own welcoming personality and the performance persona which handles the songs, blurring the line of physicality which separates woman and cello. She’s out on a brief tour now, playing outside London for a few events. Go see for yourselves.

For many female pop musicians, an increasingly outright or explicit public sexuality is both a marketing point and the prime hook. To an extent, this is also true of Jenny Hval. Many people will have initially heard about her thanks to what seemed to be a head-turningly saucy lyric:“I arrived in town with an electric toothbrush pressed against my clitoris.” Curious (and possibly a little numbed by Rihanna, plus memories of lubricious Prince party-funk), many of us will have followed this expecting a licentious slow jam, only to find something very different – the opening line of a mirror-calm songscape of hovering bells, limpid murmurs and breathed-on acoustic guitars which dealt with the secret worlds of strangers within cities and, in particular, their self-reliance.

A polymath whose methods blur as artfully as her perspectives, Jenny doesn’t write songs so much as drop carefully-charged texts and pointers, and then explore and adorn these recitatives with chantlike melodies and poised minimal instrumental textures, pulling them apart and working in and out of the word-rhythms. Her guitars, keyboards and samplers (as well as her heavy-lashed, light-tongued vocals) work like soft-edged sculpting tools. Her lyrics are the lines of resistance.

For both new listeners and previous converts, sexuality remains a prime Hval hook. It’s what we expect to hear from her, although we’ve quickly learnt to appreciate that she turns the expected approaches on their heads and back-to-front. She revels in the unfixed: in the course of a single song, lovers will pass fluidly from mysterious passion to friendship to absence, and between gender, ages, species or state. Even when singing of cupping her own cunt (while cupping the blunt, unadorned and troublesome word itself, delivered throughout her songbook without a hint of shame, taboo or aggression and with a succinct matter-of-fact poise) she’ll let the action lead her somewhere that doesn’t fit the usual expectations and commodities – appreciating its centrality at her body’s core; being inspired to cup in turn a lover’s “soft dick… accepting restlessness, accepting no direction, accepting this fearful wanting that isn’t desire… can we just lie here being?”; or imagining a world of peaceful masturbators (“a million bedrooms with hands softly lulling… without telling anyone, a million ships come alone out on the calmest seas”) while asking, with a sense of disquiet “are we loving ourselves now? Are we mothering ourselves?”

Also running through Jenny’s work (whether entwined with or separate from the sexual themes), are ambiguous accounts of bodily disintegration. Opening her second album ‘Innocence Is Kinky’ with an account of watching online porn, she moves from commodified enervation into an eerie and exultant dream of escape, relinquishing her own body and its passive needs, and finally symbolically destroying the eyes with which she consumes the images. Yet this song and its sisters aren’t quite nightmares. Sometimes they’re triumphs – disassociative fantasies of freedom in which the wrack and ruin seem to be the natural rites of passage of a cool mind walking free, unconcerned, its passions become processes.

Jenny’s writing casts a wide net – violent upsets echoing classic French surrealism; deep-running strands of myth both classical and original (from the “Oslo Oedipus” of Innocence Is Kinky to the dark, quasi-pagan tree-figure in Amphibious, Androgynous that stands as lover, doppelganger and the next phase of self); and musings on the ambiguous trap of language (“the tongue is upon for the restless /An indecipherable alphabet / Each word an island less… And we speak in tongues from part to parts, broke all to parts / From invisible state, to invisible state…”). Most recently, on her latest album ‘Apocalypse, Girl’ the political subtexts have broken cover to become direct challenges (“You say I’m free now, that battle is over, / and feminism is over and socialism’s over. / Yeah, I say, I can consume what I want now..”). So too have preoccupations with ageing and survival (in the breathless narrative of Heaven, surrounded by loops and fractures of cemeteries and childhood choirs, Jenny wrestles with the pull of memory and the drag of mortality) and a increasingly solid approach to identity. “What is it to take care of yourself? Getting paid? Getting laid? Getting married? Getting pregnant? Fighting for visibility in your market? Realizing your potential? Being healthy, being clean, not making a fool of yourself, not hurting yourself? Shaving in all the right places?”

All of the above – the obliqueness and the rapier hits – makes listening to Jenny’s records akin to haunting her apartment at 2am (or some similar time when manners and manneredness come unstuck and the shapes of other truths come walking). I’ve not been fortunate enough to see what her music is like live – though I know that past concert showings have seen her play bolstered with guests or simply alone, surrounded by laptops, devices and ideas. On the five quick dates of her current UK tour, you’ll be able to see for yourselves.

On the Glasgow, Manchester and Bristol dates, Jenny will be joined by her on-off tourmate Briana Marela, a singer-songwriter from the Pacific North-West who’s currently working a string of European tour dates in support of her second album ‘All Around Us’. As you might expect from something recorded in Iceland and co-produced with Sigur Rós associate Alex Somers, ‘All Around Us’ is ghosted and garnished with touches of Hopelandic enchantment (with beautiful smeared, paper-thin sounds intruding on the edge of the mix, like lost amnesiac ghosts or distant pipes), but it’s very much Briana’s inspiration – a luminous, thoughtful work blending layered melodic sample-patches and banking her petal-delicate vocals into choirs and a capella counterpoint.

Though Briana cites Björk, Laura Veirs, Vashti Bunyan and Meredith Monk as influences (she has something in common with Laura Moody, then), I can also hear the same kind of all-round sound-mastery that’s on display and working away in the songs of Imogen Heap; deep-level sonic exploration and sound curation tied to the urge to tell you a story and sing you a straight earworm. In the album’s lead single Surrender I can even hear something of the pure pop of ABBA, while the midnight lushness of the follow-up, Dani, recalls a Julee Cruise ‘Twin Peaks’ ballad.

Though Briana’s voice is soft, it’s never wispy – never insubstantial. If there’s a hint of girl-next-door to what she does, she’s the quiet, observant girl full of thoughts, going her own way but ready to let you walk alongside. Like Jenny, though less explicitly, she explores possibilities of intimacy. Her songs hover carefully on the borderline between selfhood and loneliness, a delicate staking out of possible togetherness, subtly resisting the pressures to put out or submit, to be deformed by needs and expectations (“What does love mean in this day and age? / To me it’s a moment where we resonate at two frequencies close in phase… / It’s not a competition / Everyone has music within them.” ). Meanwhile, the perfectly-pitched American-visionary tone of the album (its hallucinatory fairy-tale sonics, leaflike piano falls and misty country swells) suggests that there’s common ground between Briana’s dream pop and the ostensibly cleaner work of breakthrough CCM-pop singers like Lexi Elisha, which in turn suggests that there’ll be a lot of people who’ll end up liking this.

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In between dates with Jenny Hval, Briana Marela will also be joining the bill at another Illuminations concert in London, this one a stew of assorted flavours which also includes the battered Americana of Lift To Experience frontman Josh T. Pearsonand the skewed Tyneside noise-troubadour work of Richard Dawson.

Probably because of the female orientation of this particular post, I’ve got to admit that I’m more intrigued by the youngest act on the bill, and the only other female one. It’s difficult to work out just how tongue-in-cheek the “psychedelic rag-doll sludge-pop” duo Let’s Eat Grandma are, assuming that they’re joking at all. Eyes down, singing from beneath and behind tumbling pre-Raphaelite locks, and tucked into stolen Stevie Nicks dresses, Rosa and Jenny rummage with various instruments like toybox-divers and play songs as if it’s only occurred to them to do so. Two Norwich teenagers who’ve known each other since childhood, they’ve sustained, into near adulthood, that mysterious blankness of two little girls who are ignoring your interruptions to their game. The songs themselves are tangled musical fairy stories, or (as with ‘Eat Shiitake Mushrooms Into Chocolate Sludge Cake’) extended wooden-legged instrumental mantras owing more to Faust or Beefheart: spontaneous-seeming, utterly absorbed in themselves. The band feels like a musical chrysalis twitching what might become an astounding breadth of wing. It’s all to discover.

I finished with a sex rap last time, and I’m picking up with another one now, although the rich fantastical swirl which Appalachian crew Hypenkrünk indulge on ‘Clitmatist’ lies far over the mountains from Ardamus’ down-to-earth D.C.-based romantic farces. Forty years in, one of the joys of hip hop’s current universality is that anyone can wallow in its rich sea of roleplay. In this case, stocky thirtysomething white guys from Tennessee who look like pro wrestlers get to pose as love gods. “Keeping it real” was always a wobbly concept for hip-hop: let’s just go with the dance of masks for a moment.

We’ve had dirty South for a while. This is mountain-man smut, with a swirl of German oscillators. For much of the ‘Clitmatist’ video, rapper Realtree (pallid stony-faced expression, magician’s robe, and whiskers that are part kung-fu-villain and part backwoods outlaw) lovingly serenades an only-just-offscreen vulva. He’s armed with ouija board, hypnotist’s watch, and a lubriciously loaded tongue. Explicit promises roll off the latter in a drench of hip hop wordplay (“Stow that hidden treasure packed away upon a shelf / You could never reach it – I think that I can help… / I would have brought some flowers but I’m here to smell yours,”) and down-home Southern innuendo. The words crawl over a billowing duvet of mongrelised electronica: some whining G-funk synth, Hawkwind gizmo dabbles and an undulating mattress of Berlin School sequencer. A discreet psychedelic guitar glints and swells as part of the ensemble. While nobody’s looking it sneaks out a sitar impression, as if furnishing a ‘70s-themed shag-pad.

In between glimpses of Realtree’s cartoon crib, stoned shots of trees claw the sky. A second Hypenkrünker shows up as a Charon figure. As fat, bald and impassive as a Turkish masseur in a peep-show (and poling his punt down a misty vagina-pink Styx), he’s a living “man-in-the-boat” gag who, at one point, shares a raunchy topless man-massage with Realtree. The Hypenkrünk PR promises essay on duality, alternate worlds, evolved consciousness and animal nature, and the lyrics drop references to stargazing and meditating as well as mystic rides; but right now our potential guru (when not rhyming “Kundalini” with “bikini”) seems more concerned with urging his date to “spread it like a flying squirrel.”

OK, you’re probably snorting your drink out of your nose by now. All of this is a joke, at least on one level. The players are moonshiners and moonlighters, coming in from assorted east Tennessee electronica, prog and psychedelic projects as well as from hip hop; while both in and out of the video, there’s a tinge of good-natured, low-budget, storytelling porn (tacky costumes, audience complicity, and all). But even as they rip the piss out of slutty-Romeo raps, whacking-material traditions and cosmic posturing in sound and vision alike, (“I am the saviour / of your l-l-labia – / I’m gonna see you on your worst behaviour, freaky neighbour,”) there’s an authentic tang to both Hypenkrünk’s trippy vapours and their juicier ends. As a self-styled master of sex Realtree’s clearly devoted to the task – from end to end, the song’s entirely and exclusively about serving female pleasure – and as musicians Hypenkrünk sink themselves deeply, devotedly into every genre they love and pillage. Filthy, sweaty, trippy, and even tender… at least, this time round.

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Conversely, it’s the last time around for Derbyshire alt.pop brothers Low Low Low La La La Love Love Love, but on their final single they’re speaking up for the bemused and frightened beast in people. Initially, ‘Burrow’ comes across like The Walker Brothers heard through a static storm, or like Phil Spector hauling My Bloody Valentine back into the ‘60s. Drums boom like warehouse crates, tubular bells are smacked: a cavernous crooning blur of backing vocals rides the swagger and swells like a sailor’s choir, while guitars shrug off a gluey sonic trail and a slow low-tide lick of quiet frying noise. Kelly Dyson’s vocals are nasal and poppy, while the words they’re singing are pitched between nightmare and compassion – “The weight of fears above the burrow, / of teeth and fur and blood / I clear my throat at a circle of sky / from the back of the hole I dug.”

It’s a singalong rabbit siege; a fatalistic, cowering gnash back at life’s terrors, a last burst of resistance before fate takes shape and takes hold. (“Maybe I’ll bolt out into the snare / from the back of the hole I dug. / And feel the cold metal wire tear / at the fur and skin and sinew around my throat.”) You can’t help thinking that the latterday Scott Walker, looking back over his own post-crooner gnarls of cruelties and complications, would tip his baseball cap in approval at the Low Low efforts, as well as the way they interweave animal behaviour and human anxieties. “I’ll lay and watch the long migrations / and envy the southward bound formations. /All the world performs the same motions / as I choke and wretch and spit and curse at my complications.” After the recording sessions were over, one of the Dysons immediately quit the band and Derbyshire, and lit out for London. Presumably he ducked the snare. Let’s hope he escapes the city predators.

The B-side, ‘Stop Spinning the Birdcage’ drops the fuzz drapes and the timpani booms for a brace of acoustic guitars and syrupy West Coast harmonies. Until banjo, bass and noisy lead guitar (all squeak and corrosion) work their way in (gradually sickening and splintering the song into disorientation) it sounds like an unplugged Byrds on the cusp of psychedelia, with the voices keeping their candy throughout. From the start, though, sunny, stoned-love-song intentions are hijacked by morbid distractions – “butterflies all around her eyes / I wonder when she makes up her eyes / if she draws blood?” – and its lazy and blissful carnality ends up hopelessly confused (“My eyes are carnivores / I’m thinking which bit of her face I should have first. / Little mouth or little nose? / I wonder, should I kiss it / or should I eat it whole?”).

Yet there’s no malice, no self-conscious weirdness to it: While a songwriter like Momus would have had a detailed and literate field day with this kind of polymorphous perversity, the Dysons are content to leave it as a passing blip. A sprained acid hiccup on a day for canoodling, a momentary surfacing of something more animal. A good, ever-so-slightly provocative note to go out on.

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There are no such peculiar moments (or quivering perspectives) with Grayhound O.C.D., despite their goofy name. They play straight modern rock throughout: the U2 root-note pulse in the bass, the sugar-frosted piano picking its way lightly through the chords, the choral synths. The guitars have that caressing thresh we know from Coldplay – gauze-wrapped shoegaze thunder, honed down from trance-inducer to aural duvet. Frontman Gray calls his girlfriend a “shining star” and – in the video – loiters theatrically at the tops of castles and by the side of lakes, staring meaningfully at imaginary horizons like a Thor-bearded Bono-in-waiting. He seems oblivious to the fact that the weather has seriously let him down (staying resolutely nice and clear when it could have had the decency to whip up a quick squall or dramatic cloud) or that maybe there’s another tour party waiting to squeeze past on the battlements.

In other words, everything’s in place but the actual drama, underlining how contrived and calculated the band are. I let Hypenkrünk off their own contrivances, thanks to their wit: I’m less inclined to do the same for a band apparently poised to snatch up any tour or festival gaps left by touring Anglophone acts. Yet for three minutes they almost have me. Maybe Gray wins his day pass simply because it makes a change to hear an inflated arena-rock package with a soft-sung German accent rather than a simpering high-volume falsetto. Maybe it’s the superb, sensual production that buffs everything up to the glossy, summer-storm sheen of mid-‘80s Simple Minds (a sound I’ve always loved, even when the mighty winds curdle to warmed-over gassiness). Perhaps its the simple pleasure to be had by hearing assured musicians hit their mark and keep the rhythm bounding – a perpetual mid-air freeze-frame.

I also suspect that none of my skepticism is going to stop boys from Hamburg to Vienna snogging their girlfriends to this one from now till early summer. They’ll probably also be breaking up and making up to the B-side, Alone – its dark-toned modal guitar figure offering a bit more of the meat and sours. Still, it’s not long before Gray is pledging to plunge into deepest seas and climb highest mountains. Pass, pal.

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Even while he’s working on bright young Los Angeles neo-soul with Idesia, or dipping into African fusion pop with Izinde, bass playing producer Daniel Oldham carries around a pocketful of other projects. When he’s nurturing his dance svengali side, he’s danny0, with a debut single pursuing a darker, more twisted side… or so he says. It’s co-written and sung (with poise and operatic smoulder) by Anna Delaria of Anna & The Static, who – like Daniel – seems to be looking for the diva-frowns and broody depths that her day band doesn’t seem to offer.

It’s almost a pity that ‘Fire’ is so cute – a slinky haunch of electronic R’n’B hanging from a fingersnap and great stomping blocks of fuzzy synthesizer. There are probably too many songs with that particular title (a magnet for posturing and duff lyrics). True to form, some of the words here wobble as Daniel and Anna toy with images of flames, menace and insouciance, some of which slip through their fingers. Anna, however, never loses her step. Strutting and ducking through the keyboard slams, she sells the song like a haughty Liza Minnelli.

Daniel’s production seals the deal. He seems eager to confess a debt to Rich Costey and Kimbra, but in truth this is his own beast, full of glowing slithering detail, ghost-orchestra arabesques and some subtle rug-pulling. Like the massive pixellated orange explosions in old video games, two-dimensional blossoms of blurred expansive sound belly out in great fan-dancing puffs, covering up a few shortcoming as they go. ‘Fire’ isn’t perfect, but as Anna rides it around the dance floor on its fat hairy tentacles, trailing a veil of flickering embers, you could easily forget that it isn’t.

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Even on her singles, Ellen Sunde (a.k.a. Sea Change) doesn’t showboat or swagger. Instead, she deliquesces. The blooping bedroom-pop of ‘Squares’ is both epic and introverted – a small constellation of freezing glows and vapours and the impatient blat of cheap drum programmes, with her small, sighing sob of a voice nestled at the heart of it, a warm breath on ice slurs.

In some respects Ellen resembles her fellow Norwegian, Anja Garbarek, working within a modest, birdlike sound and a haunted sketchbook, grappling with ghostly nervy ideas. In other respects, she’s whittled down the ideas of Kate Bush’s jarring, demonic ‘Get Out Of My House’ from primal screams to a flinching dodge. You could call it dream pop if it wasn’t so wide awake and bug-eyed. Far from heavy-lidded narcosis, this is dream-sharpened wakefulness and sometimes it hurts.

‘Squares’ is neurotic, fearful and ultimately brave. At times it sounds like an existential crisis wrapped in fairy lights (“just go inside, oh just go inside me / There’s no-one here”), but it’s mostly a crisis of confidence (“If I go there with you I will not be safe / All that lives inside me, all that you can see./ If you knew what I was – a frozen me, / what grows inside me – / then you’d let it go.”) Batting aside help, Ellen’s her own haunted house, her own jailor. Also, it seems, she’s her own salvation, instinctive and unpredictable, ready to burst shackles and flee without plans. “So don’t look back, don’t look back. / Out of this place, out of this house – / ‘cos if I don’t go there, / oh then my feet run, my feet will bring me there / My feet will run all they can.”

Trying to grasp at the song seems to melt it – it won’t keep a solid shape, it won’t provide a firm conclusion. Is this about self-hatred or about fervid, elusive independence? Resolving one’s own terrors, or bolting from them by panic and chance? “Save yourself first,” advises Ellen, towards the end of the song. She could be addressing a loved one, or herself: it could be nobility, or a covert brush-off. Sea Change offers transformation of circumstance and state, but also a fluttering ambiguity. Nothing is mapped out. I’m alarmed. I’m fascinated.